diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c | 674 |
1 files changed, 674 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c new file mode 100644 index 000000000000..ba383df5f63a --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_aca.c @@ -0,0 +1,674 @@ +/* + * Copyright 2023 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include <linux/list.h> +#include "amdgpu.h" +#include "amdgpu_aca.h" +#include "amdgpu_ras.h" + +#define ACA_BANK_HWID(type, hwid, mcatype) [ACA_HWIP_TYPE_##type] = {hwid, mcatype} + +typedef int bank_handler_t(struct aca_handle *handle, struct aca_bank *bank, enum aca_error_type type, void *data); + +struct aca_banks { + int nr_banks; + struct list_head list; +}; + +struct aca_hwip { + int hwid; + int mcatype; +}; + +static struct aca_hwip aca_hwid_mcatypes[ACA_HWIP_TYPE_COUNT] = { + ACA_BANK_HWID(SMU, 0x01, 0x01), + ACA_BANK_HWID(PCS_XGMI, 0x50, 0x00), + ACA_BANK_HWID(UMC, 0x96, 0x00), +}; + +static void aca_banks_init(struct aca_banks *banks) +{ + if (!banks) + return; + + memset(banks, 0, sizeof(*banks)); + INIT_LIST_HEAD(&banks->list); +} + +static int aca_banks_add_bank(struct aca_banks *banks, struct aca_bank *bank) +{ + struct aca_bank_node *node; + + if (!bank) + return -EINVAL; + + node = kvzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return -ENOMEM; + + memcpy(&node->bank, bank, sizeof(*bank)); + + INIT_LIST_HEAD(&node->node); + list_add_tail(&node->node, &banks->list); + + banks->nr_banks++; + + return 0; +} + +static void aca_banks_release(struct aca_banks *banks) +{ + struct aca_bank_node *node, *tmp; + + list_for_each_entry_safe(node, tmp, &banks->list, node) { + list_del(&node->node); + kvfree(node); + } +} + +static int aca_smu_get_valid_aca_count(struct amdgpu_device *adev, enum aca_error_type type, u32 *count) +{ + struct amdgpu_aca *aca = &adev->aca; + const struct aca_smu_funcs *smu_funcs = aca->smu_funcs; + + if (!count) + return -EINVAL; + + if (!smu_funcs || !smu_funcs->get_valid_aca_count) + return -EOPNOTSUPP; + + return smu_funcs->get_valid_aca_count(adev, type, count); +} + +static int aca_smu_get_valid_aca_banks(struct amdgpu_device *adev, enum aca_error_type type, + int start, int count, + struct aca_banks *banks) +{ + struct amdgpu_aca *aca = &adev->aca; + const struct aca_smu_funcs *smu_funcs = aca->smu_funcs; + struct aca_bank bank; + int i, max_count, ret; + + if (!count) + return 0; + + if (!smu_funcs || !smu_funcs->get_valid_aca_bank) + return -EOPNOTSUPP; + + switch (type) { + case ACA_ERROR_TYPE_UE: + max_count = smu_funcs->max_ue_bank_count; + break; + case ACA_ERROR_TYPE_CE: + max_count = smu_funcs->max_ce_bank_count; + break; + case ACA_ERROR_TYPE_DEFERRED: + default: + return -EINVAL; + } + + if (start + count >= max_count) + return -EINVAL; + + count = min_t(int, count, max_count); + for (i = 0; i < count; i++) { + memset(&bank, 0, sizeof(bank)); + ret = smu_funcs->get_valid_aca_bank(adev, type, start + i, &bank); + if (ret) + return ret; + + ret = aca_banks_add_bank(banks, &bank); + if (ret) + return ret; + } + + return 0; +} + +static bool aca_bank_hwip_is_matched(struct aca_bank *bank, enum aca_hwip_type type) +{ + + struct aca_hwip *hwip; + int hwid, mcatype; + u64 ipid; + + if (!bank || type == ACA_HWIP_TYPE_UNKNOW) + return -EINVAL; + + hwip = &aca_hwid_mcatypes[type]; + if (!hwip->hwid) + return false; + + ipid = bank->regs[ACA_REG_IDX_IPID]; + hwid = ACA_REG__IPID__HARDWAREID(ipid); + mcatype = ACA_REG__IPID__MCATYPE(ipid); + + return hwip->hwid == hwid && hwip->mcatype == mcatype; +} + +static bool aca_bank_is_valid(struct aca_handle *handle, struct aca_bank *bank, enum aca_error_type type) +{ + const struct aca_bank_ops *bank_ops = handle->bank_ops; + + if (!aca_bank_hwip_is_matched(bank, handle->hwip)) + return false; + + if (!bank_ops->aca_bank_is_valid) + return true; + + return bank_ops->aca_bank_is_valid(handle, bank, type, handle->data); +} + +static struct aca_bank_error *new_bank_error(struct aca_error *aerr, struct aca_bank_info *info) +{ + struct aca_bank_error *bank_error; + + bank_error = kvzalloc(sizeof(*bank_error), GFP_KERNEL); + if (!bank_error) + return NULL; + + INIT_LIST_HEAD(&bank_error->node); + memcpy(&bank_error->info, info, sizeof(*info)); + + mutex_lock(&aerr->lock); + list_add_tail(&bank_error->node, &aerr->list); + mutex_unlock(&aerr->lock); + + return bank_error; +} + +static struct aca_bank_error *find_bank_error(struct aca_error *aerr, struct aca_bank_info *info) +{ + struct aca_bank_error *bank_error = NULL; + struct aca_bank_info *tmp_info; + bool found = false; + + mutex_lock(&aerr->lock); + list_for_each_entry(bank_error, &aerr->list, node) { + tmp_info = &bank_error->info; + if (tmp_info->socket_id == info->socket_id && + tmp_info->die_id == info->die_id) { + found = true; + goto out_unlock; + } + } + +out_unlock: + mutex_unlock(&aerr->lock); + + return found ? bank_error : NULL; +} + +static void aca_bank_error_remove(struct aca_error *aerr, struct aca_bank_error *bank_error) +{ + if (!aerr || !bank_error) + return; + + list_del(&bank_error->node); + aerr->nr_errors--; + + kvfree(bank_error); +} + +static struct aca_bank_error *get_bank_error(struct aca_error *aerr, struct aca_bank_info *info) +{ + struct aca_bank_error *bank_error; + + if (!aerr || !info) + return NULL; + + bank_error = find_bank_error(aerr, info); + if (bank_error) + return bank_error; + + return new_bank_error(aerr, info); +} + +static int aca_log_errors(struct aca_handle *handle, enum aca_error_type type, + struct aca_bank_report *report) +{ + struct aca_error_cache *error_cache = &handle->error_cache; + struct aca_bank_error *bank_error; + struct aca_error *aerr; + + if (!handle || !report) + return -EINVAL; + + if (!report->count[type]) + return 0; + + aerr = &error_cache->errors[type]; + bank_error = get_bank_error(aerr, &report->info); + if (!bank_error) + return -ENOMEM; + + bank_error->count[type] += report->count[type]; + + return 0; +} + +static int aca_generate_bank_report(struct aca_handle *handle, struct aca_bank *bank, + enum aca_error_type type, struct aca_bank_report *report) +{ + const struct aca_bank_ops *bank_ops = handle->bank_ops; + + if (!bank || !report) + return -EINVAL; + + if (!bank_ops->aca_bank_generate_report) + return -EOPNOTSUPP; + + memset(report, 0, sizeof(*report)); + return bank_ops->aca_bank_generate_report(handle, bank, type, + report, handle->data); +} + +static int handler_aca_log_bank_error(struct aca_handle *handle, struct aca_bank *bank, + enum aca_error_type type, void *data) +{ + struct aca_bank_report report; + int ret; + + ret = aca_generate_bank_report(handle, bank, type, &report); + if (ret) + return ret; + + if (!report.count[type]) + return 0; + + ret = aca_log_errors(handle, type, &report); + if (ret) + return ret; + + return 0; +} + +static int aca_dispatch_bank(struct aca_handle_manager *mgr, struct aca_bank *bank, + enum aca_error_type type, bank_handler_t handler, void *data) +{ + struct aca_handle *handle; + int ret; + + if (list_empty(&mgr->list)) + return 0; + + list_for_each_entry(handle, &mgr->list, node) { + if (!aca_bank_is_valid(handle, bank, type)) + continue; + + ret = handler(handle, bank, type, data); + if (ret) + return ret; + } + + return 0; +} + +static int aca_dispatch_banks(struct aca_handle_manager *mgr, struct aca_banks *banks, + enum aca_error_type type, bank_handler_t handler, void *data) +{ + struct aca_bank_node *node; + struct aca_bank *bank; + int ret; + + if (!mgr || !banks) + return -EINVAL; + + /* pre check to avoid unnecessary operations */ + if (list_empty(&mgr->list) || list_empty(&banks->list)) + return 0; + + list_for_each_entry(node, &banks->list, node) { + bank = &node->bank; + + ret = aca_dispatch_bank(mgr, bank, type, handler, data); + if (ret) + return ret; + } + + return 0; +} + +static int aca_banks_update(struct amdgpu_device *adev, enum aca_error_type type, + bank_handler_t handler, void *data) +{ + struct amdgpu_aca *aca = &adev->aca; + struct aca_banks banks; + u32 count = 0; + int ret; + + if (list_empty(&aca->mgr.list)) + return 0; + + /* NOTE: pmfw is only support UE and CE */ + if (type == ACA_ERROR_TYPE_DEFERRED) + type = ACA_ERROR_TYPE_CE; + + ret = aca_smu_get_valid_aca_count(adev, type, &count); + if (ret) + return ret; + + if (!count) + return 0; + + aca_banks_init(&banks); + + ret = aca_smu_get_valid_aca_banks(adev, type, 0, count, &banks); + if (ret) + goto err_release_banks; + + if (list_empty(&banks.list)) { + ret = 0; + goto err_release_banks; + } + + ret = aca_dispatch_banks(&aca->mgr, &banks, type, + handler, data); + if (ret) + goto err_release_banks; + +err_release_banks: + aca_banks_release(&banks); + + return ret; +} + +static int aca_log_aca_error_data(struct aca_bank_error *bank_error, enum aca_error_type type, struct ras_err_data *err_data) +{ + struct aca_bank_info *info; + struct amdgpu_smuio_mcm_config_info mcm_info; + u64 count; + + if (type >= ACA_ERROR_TYPE_COUNT) + return -EINVAL; + + count = bank_error->count[type]; + if (!count) + return 0; + + info = &bank_error->info; + mcm_info.die_id = info->die_id; + mcm_info.socket_id = info->socket_id; + + switch (type) { + case ACA_ERROR_TYPE_UE: + amdgpu_ras_error_statistic_ue_count(err_data, &mcm_info, NULL, count); + break; + case ACA_ERROR_TYPE_CE: + amdgpu_ras_error_statistic_ce_count(err_data, &mcm_info, NULL, count); + break; + case ACA_ERROR_TYPE_DEFERRED: + default: + break; + } + + return 0; +} + +static int aca_log_aca_error(struct aca_handle *handle, enum aca_error_type type, struct ras_err_data *err_data) +{ + struct aca_error_cache *error_cache = &handle->error_cache; + struct aca_error *aerr = &error_cache->errors[type]; + struct aca_bank_error *bank_error, *tmp; + + mutex_lock(&aerr->lock); + + if (list_empty(&aerr->list)) + goto out_unlock; + + list_for_each_entry_safe(bank_error, tmp, &aerr->list, node) { + aca_log_aca_error_data(bank_error, type, err_data); + aca_bank_error_remove(aerr, bank_error); + } + +out_unlock: + mutex_unlock(&aerr->lock); + + return 0; +} + +static int __aca_get_error_data(struct amdgpu_device *adev, struct aca_handle *handle, enum aca_error_type type, + struct ras_err_data *err_data) +{ + int ret; + + /* udpate aca bank to aca source error_cache first */ + ret = aca_banks_update(adev, type, handler_aca_log_bank_error, NULL); + if (ret) + return ret; + + return aca_log_aca_error(handle, type, err_data); +} + +static bool aca_handle_is_valid(struct aca_handle *handle) +{ + if (!handle->mask || !list_empty(&handle->node)) + return false; + + return true; +} + +int amdgpu_aca_get_error_data(struct amdgpu_device *adev, struct aca_handle *handle, + enum aca_error_type type, void *data) +{ + struct ras_err_data *err_data = (struct ras_err_data *)data; + + if (!handle || !err_data) + return -EINVAL; + + if (aca_handle_is_valid(handle)) + return -EOPNOTSUPP; + + if (!(BIT(type) & handle->mask)) + return 0; + + return __aca_get_error_data(adev, handle, type, err_data); +} + +static void aca_error_init(struct aca_error *aerr, enum aca_error_type type) +{ + mutex_init(&aerr->lock); + INIT_LIST_HEAD(&aerr->list); + aerr->type = type; + aerr->nr_errors = 0; +} + +static void aca_init_error_cache(struct aca_handle *handle) +{ + struct aca_error_cache *error_cache = &handle->error_cache; + int type; + + for (type = ACA_ERROR_TYPE_UE; type < ACA_ERROR_TYPE_COUNT; type++) + aca_error_init(&error_cache->errors[type], type); +} + +static void aca_error_fini(struct aca_error *aerr) +{ + struct aca_bank_error *bank_error, *tmp; + + mutex_lock(&aerr->lock); + list_for_each_entry_safe(bank_error, tmp, &aerr->list, node) + aca_bank_error_remove(aerr, bank_error); + + mutex_destroy(&aerr->lock); +} + +static void aca_fini_error_cache(struct aca_handle *handle) +{ + struct aca_error_cache *error_cache = &handle->error_cache; + int type; + + for (type = ACA_ERROR_TYPE_UE; type < ACA_ERROR_TYPE_COUNT; type++) + aca_error_fini(&error_cache->errors[type]); +} + +static int add_aca_handle(struct amdgpu_device *adev, struct aca_handle_manager *mgr, struct aca_handle *handle, + const char *name, const struct aca_info *ras_info, void *data) +{ + memset(handle, 0, sizeof(*handle)); + + handle->adev = adev; + handle->mgr = mgr; + handle->name = name; + handle->hwip = ras_info->hwip; + handle->mask = ras_info->mask; + handle->bank_ops = ras_info->bank_ops; + handle->data = data; + aca_init_error_cache(handle); + + INIT_LIST_HEAD(&handle->node); + list_add_tail(&handle->node, &mgr->list); + mgr->nr_handles++; + + return 0; +} + +int amdgpu_aca_add_handle(struct amdgpu_device *adev, struct aca_handle *handle, + const char *name, const struct aca_info *ras_info, void *data) +{ + struct amdgpu_aca *aca = &adev->aca; + + return add_aca_handle(adev, &aca->mgr, handle, name, ras_info, data); +} + +static void remove_aca(struct aca_handle *handle) +{ + struct aca_handle_manager *mgr = handle->mgr; + + aca_fini_error_cache(handle); + list_del(&handle->node); + mgr->nr_handles--; +} + +void amdgpu_aca_remove_handle(struct aca_handle *handle) +{ + if (!handle || list_empty(&handle->node)) + return; + + remove_aca(handle); +} + +static int aca_manager_init(struct aca_handle_manager *mgr) +{ + INIT_LIST_HEAD(&mgr->list); + mgr->nr_handles = 0; + + return 0; +} + +static void aca_manager_fini(struct aca_handle_manager *mgr) +{ + struct aca_handle *handle, *tmp; + + list_for_each_entry_safe(handle, tmp, &mgr->list, node) + remove_aca(handle); +} + +int amdgpu_aca_init(struct amdgpu_device *adev) +{ + struct amdgpu_aca *aca = &adev->aca; + int ret; + + ret = aca_manager_init(&aca->mgr); + if (ret) + return ret; + + return 0; +} + +void amdgpu_aca_fini(struct amdgpu_device *adev) +{ + struct amdgpu_aca *aca = &adev->aca; + + aca_manager_fini(&aca->mgr); +} + +void amdgpu_aca_set_smu_funcs(struct amdgpu_device *adev, const struct aca_smu_funcs *smu_funcs) +{ + struct amdgpu_aca *aca = &adev->aca; + + WARN_ON(aca->smu_funcs); + aca->smu_funcs = smu_funcs; +} + +int aca_bank_info_decode(struct aca_bank *bank, struct aca_bank_info *info) +{ + u64 ipid; + u32 instidhi, instidlo; + + if (!bank || !info) + return -EINVAL; + + ipid = bank->regs[ACA_REG_IDX_IPID]; + info->hwid = ACA_REG__IPID__HARDWAREID(ipid); + info->mcatype = ACA_REG__IPID__MCATYPE(ipid); + /* + * Unfied DieID Format: SAASS. A:AID, S:Socket. + * Unfied DieID[4:4] = InstanceId[0:0] + * Unfied DieID[0:3] = InstanceIdHi[0:3] + */ + instidhi = ACA_REG__IPID__INSTANCEIDHI(ipid); + instidlo = ACA_REG__IPID__INSTANCEIDLO(ipid); + info->die_id = ((instidhi >> 2) & 0x03); + info->socket_id = ((instidlo & 0x1) << 2) | (instidhi & 0x03); + + return 0; +} + +static int aca_bank_get_error_code(struct amdgpu_device *adev, struct aca_bank *bank) +{ + int error_code; + + switch (amdgpu_ip_version(adev, MP1_HWIP, 0)) { + case IP_VERSION(13, 0, 6): + if (!(adev->flags & AMD_IS_APU) && adev->pm.fw_version >= 0x00555600) { + error_code = ACA_REG__SYND__ERRORINFORMATION(bank->regs[ACA_REG_IDX_SYND]); + return error_code & 0xff; + } + break; + default: + break; + } + + /* NOTE: the true error code is encoded in status.errorcode[0:7] */ + error_code = ACA_REG__STATUS__ERRORCODE(bank->regs[ACA_REG_IDX_STATUS]); + + return error_code & 0xff; +} + +int aca_bank_check_error_codes(struct amdgpu_device *adev, struct aca_bank *bank, int *err_codes, int size) +{ + int i, error_code; + + if (!bank || !err_codes) + return -EINVAL; + + error_code = aca_bank_get_error_code(adev, bank); + for (i = 0; i < size; i++) { + if (err_codes[i] == error_code) + return 0; + } + + return -EINVAL; +} + |